chore: changeset for the chat.agent recovery message-loss fix

Author: ericallam

.changeset/chat-agent-recovery-message-loss.md

@@ -0,0 +1,6 @@
+---
+"@trigger.dev/sdk": patch
+"@trigger.dev/core": patch
+---
+
+`chat.agent`: a run that recovers a session with more than one in-flight user message no longer drops the unanswered ones if it restarts mid-recovery. Recovered messages now hold the resume cursor until each has been answered, so a restart re-answers the rest instead of resuming past them. Previously the cursor could advance past messages that were only held in memory, so a crash before they were dispatched lost them.